CN1117346C - 编码离散信号和解码已编码的离散信号的方法和设备 - Google Patents

编码离散信号和解码已编码的离散信号的方法和设备 Download PDF

Info

Publication number
CN1117346C
CN1117346C CN97199177A CN97199177A CN1117346C CN 1117346 C CN1117346 C CN 1117346C CN 97199177 A CN97199177 A CN 97199177A CN 97199177 A CN97199177 A CN 97199177A CN 1117346 C CN1117346 C CN 1117346C
Authority
CN
China
Prior art keywords
encoded
value
spectrum value
weighted
steps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN97199177A
Other languages
English (en)
Chinese (zh)
Other versions
CN1234897A (zh
Inventor
伯恩哈特·格里尔
伯恩德·埃德勒
卡尔海因茨·勃兰登堡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of CN1234897A publication Critical patent/CN1234897A/zh
Application granted granted Critical
Publication of CN1117346C publication Critical patent/CN1117346C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN97199177A 1997-02-19 1997-11-28 编码离散信号和解码已编码的离散信号的方法和设备 Expired - Lifetime CN1117346C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19706516A DE19706516C1 (de) 1997-02-19 1997-02-19 Verfahren und Vorricntungen zum Codieren von diskreten Signalen bzw. zum Decodieren von codierten diskreten Signalen
DE19706516.3 1997-02-19

Publications (2)

Publication Number Publication Date
CN1234897A CN1234897A (zh) 1999-11-10
CN1117346C true CN1117346C (zh) 2003-08-06

Family

ID=7820801

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97199177A Expired - Lifetime CN1117346C (zh) 1997-02-19 1997-11-28 编码离散信号和解码已编码的离散信号的方法和设备

Country Status (13)

Country Link
US (1) US6370507B1 (ja)
EP (1) EP0962015B1 (ja)
JP (1) JP3420250B2 (ja)
KR (1) KR100308427B1 (ja)
CN (1) CN1117346C (ja)
AT (1) ATE205010T1 (ja)
AU (1) AU711082B2 (ja)
CA (1) CA2267219C (ja)
DE (2) DE19706516C1 (ja)
DK (1) DK0962015T3 (ja)
ES (1) ES2160980T3 (ja)
NO (1) NO317596B1 (ja)
WO (1) WO1998037544A1 (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747132C2 (de) * 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
EP1159734B1 (de) 1999-03-08 2004-05-19 Siemens Aktiengesellschaft Verfahren und anordnung zur ermittlung einer merkmalsbeschreibung eines sprachsignals
FR2791167B1 (fr) * 1999-03-17 2003-01-10 Matra Nortel Communications Procedes de codage, de decodage et de transcodage audio
US7085377B1 (en) * 1999-07-30 2006-08-01 Lucent Technologies Inc. Information delivery in a multi-stream digital broadcasting system
US6446037B1 (en) 1999-08-09 2002-09-03 Dolby Laboratories Licensing Corporation Scalable coding method for high quality audio
US6735561B1 (en) * 2000-03-29 2004-05-11 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US7099830B1 (en) * 2000-03-29 2006-08-29 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
KR100528325B1 (ko) * 2002-12-18 2005-11-15 삼성전자주식회사 비트율 조절이 가능한 스테레오 오디오 부호화 및복호화방법 및 그 장치
FR2849727B1 (fr) * 2003-01-08 2005-03-18 France Telecom Procede de codage et de decodage audio a debit variable
US7619995B1 (en) * 2003-07-18 2009-11-17 Nortel Networks Limited Transcoders and mixers for voice-over-IP conferencing
JP4679049B2 (ja) * 2003-09-30 2011-04-27 パナソニック株式会社 スケーラブル復号化装置
KR100685992B1 (ko) 2004-11-10 2007-02-23 엘지전자 주식회사 디지털 방송 수신기에서 채널 전환시 정보 출력 방법
DE102005032724B4 (de) * 2005-07-13 2009-10-08 Siemens Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
US7835904B2 (en) * 2006-03-03 2010-11-16 Microsoft Corp. Perceptual, scalable audio compression
KR101403340B1 (ko) * 2007-08-02 2014-06-09 삼성전자주식회사 변환 부호화 방법 및 장치
EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
TWI419148B (zh) * 2008-10-08 2013-12-11 Fraunhofer Ges Forschung 多解析度切換音訊編碼／解碼方案
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
BR122021003887B1 (pt) * 2010-08-12 2021-08-24 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E. V. Reamostrar sinais de saída de codecs de áudio com base em qmf
CN103971691B (zh) * 2013-01-29 2017-09-29 鸿富锦精密工业（深圳）有限公司 语音信号处理系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715512A (en) * 1971-12-20 1973-02-06 Bell Telephone Labor Inc Adaptive predictive speech signal coding system
US5513297A (en) * 1992-07-10 1996-04-30 At&T Corp. Selective application of speech coding techniques to input signal segments
US5692102A (en) * 1995-10-26 1997-11-25 Motorola, Inc. Method device and system for an efficient noise injection process for low bitrate audio compression
JP3707116B2 (ja) * 1995-10-26 2005-10-19 ソニー株式会社 音声復号化方法及び装置
US5794180A (en) * 1996-04-30 1998-08-11 Texas Instruments Incorporated Signal quantizer wherein average level replaces subframe steady-state levels
US6092041A (en) * 1996-08-22 2000-07-18 Motorola, Inc. System and method of encoding and decoding a layered bitstream by re-applying psychoacoustic analysis in the decoder
KR100261254B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치

Also Published As

Publication number Publication date
KR100308427B1 (ko) 2001-09-29
WO1998037544A1 (de) 1998-08-27
EP0962015B1 (de) 2001-08-29
AU5557198A (en) 1998-09-09
ATE205010T1 (de) 2001-09-15
CA2267219A1 (en) 1998-08-27
ES2160980T3 (es) 2001-11-16
NO992969D0 (no) 1999-06-17
NO992969L (no) 1999-06-17
NO317596B1 (no) 2004-11-22
DE59704485D1 (de) 2001-10-04
US6370507B1 (en) 2002-04-09
KR20000069494A (ko) 2000-11-25
CN1234897A (zh) 1999-11-10
EP0962015A1 (de) 1999-12-08
DE19706516C1 (de) 1998-01-15
AU711082B2 (en) 1999-10-07
CA2267219C (en) 2003-06-17
JP3420250B2 (ja) 2003-06-23
DK0962015T3 (da) 2001-10-08
JP2000508091A (ja) 2000-06-27

Similar Documents

Publication Publication Date Title
CN1117346C (zh) 编码离散信号和解码已编码的离散信号的方法和设备
CN1809872B (zh) 编码音频信号的设备和方法及解码已编码音频信号的设备和方法
US6502069B1 (en) Method and a device for coding audio signals and a method and a device for decoding a bit stream
JP3336617B2 (ja) 信号符号化又は復号化装置，及び信号符号化又は復号化方法，並びに記録媒体
CN1332373C (zh) 用于可扩缩编码的设备及方法和用于可扩缩解码的设备及方法
KR100419546B1 (ko) 신호부호화방법및장치,신호복호화방법및장치,및신호전송방법
USRE46082E1 (en) Method and apparatus for low bit rate encoding and decoding
US6415251B1 (en) Subband coder or decoder band-limiting the overlap region between a processed subband and an adjacent non-processed one
CN1153365C (zh) 采用不同编码原理的传送系统
CN1918630B (zh) 量化信息信号的方法和设备
CN102150202A (zh) 对音频/语音信号进行编码和解码的方法和设备
EP1503502B1 (en) Encoding method and device
CN101124727B (zh) 编码器、解码器以及用于编码/解码的方法
JP2002330075A (ja) サブバンドａｄｐｃｍ符号化方法、復号方法、サブバンドａｄｐｃｍ符号化装置、復号装置およびワイヤレスマイクロホン送信システム、受信システム
WO1995012920A1 (fr) Codeur de signaux, decodeur de signaux, support d'enregistrement et procede de codage de signaux
KR100952065B1 (ko) 부호화 방법 및 장치, 및 복호 방법 및 장치
JPH09106299A (ja) 音響信号変換符号化方法および復号化方法
EP0398973B1 (en) Method and apparatus for electrical signal coding
JPH10509575A (ja) 時間依存フィルタバンクを使用する送信システム
JP3465697B2 (ja) 信号記録媒体
JPH06268606A (ja) 音声符号化通信方式及びその装置
Taniguchi et al. A high-efficiency speech coding algorithm based on ADPCM with Multi-Quantizer
KR101421256B1 (ko) 휴대용 단말기의 대역 확장 기법을 이용한 부호화 장치 및방법
Singh et al. An Enhanced Low Bit Rate Audio Codec Using Discrete Wavelet Transform
CN101488343A (zh) 一种宽带语音编码器及方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWAND

Free format text: FORMER NAME: FRAUNHOFER-GESELLSCHAFT ZURFUNDERUNG DERANGEWANDTEN FORSCHUNG E. V.

CP01 Change in the name or title of a patent holder

Address after: Munich, Germany

Patentee after: Fraunhofer Application and Research Promotion Association

Address before: Munich, Germany

Patentee before: Fraunhofer-Gesellschaft ZurFunderung DerAngewandten Forschung E. V.

CX01 Expiry of patent term

Granted publication date: 20030806